SSH Key Pair Viewer
Inspect, decode, and analyze SSH public and private keys (Ed25519, RSA, ECDSA, DSA) 100% locally in your browser. Calculate fingerprints and security ratings with zero server transmission.
1Load SSH Key
Upload SSH Key File
or browse local files
No SSH Key Loaded
Upload a key file (.pub, .pem, .key, .txt) or paste your OpenSSH public or private key to instantly inspect its algorithm, bit size, and fingerprints.
What is the Ssh Key Viewer?
Overview and core technical concepts
The Ssh Key Viewer is a professional, client-side utility designed to streamline ssh key viewer tasks with instant processing, privacy guarantees, and customizable options.
Why Use the Ssh Key Viewer?
Key advantages, developer speedups, and security benefits
Speed & Reliability
Execute calculations and transformations instantly in your local browser memory.
Enterprise Data Privacy
Your data stays on your local device, meeting strict data compliance requirements.
When to Consider Alternatives?
Anti-patterns, limitations, and when to choose an alternative approach
This tool is optimized for modern web browsers supporting Web Cryptography & WebAssembly standards.
Ssh Key Viewer Example
Sample inputs, expected outputs, and code patterns
Sample Usage Output
Generated result using Ssh Key Viewer parameters.Common Ssh Key Viewer Mistakes
Frequent errors, security risks, and how to fix them
Frequently Asked Questions
Yes, 100% safe! ToolZeno performs all parsing and fingerprint generation locally in your browser using pure JavaScript and Web Crypto APIs. Your key content is never sent over any network, saved in storage, or transmitted to any server. Moreover, this tool is strictly read-only and will never request passphrases for encrypted private keys.
ToolZeno supports all standard SSH key algorithms, including Ed25519, RSA (2048, 3072, 4096 bits), ECDSA (NIST P-256, P-384, P-521 curves), and legacy DSA (1024 bits). We also support OpenSSH single-line public keys, RFC 4716 format, OpenSSH binary private key headers, PKCS#1, and PKCS#8 PEM formats.
The SHA-256 fingerprint is computed by taking the binary wire representation of the public key (including the key type identifier and public parameters), hashing it with SHA-256 via Web Crypto API, and Base64-encoding the resulting 32-byte digest (formatted with a 'SHA256:' prefix).
DSA keys are limited to 1024-bit modulus length and are cryptographically vulnerable. Most modern SSH clients (such as OpenSSH 7.0+) have disabled DSA by default. RSA 1024-bit is also cryptographically obsolete. OpenSSH recommends using Ed25519 or RSA with at least 3072/4096-bit length.
No. This viewer is strictly read-only and explicitly designed for metadata inspection. It detects whether a private key is encrypted (and identifies the cipher/KDF metadata when available), but it does not process passphrases or decrypt key material, keeping your secrets completely secure.
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